Fuel cell system and vehicle

A fuel cell system and working medium technology, applied in the field of fuel cell systems and vehicles, can solve the problems of limited heating implementation methods, achieve the effects of compact structure, flexible matching arrangement, and heat transfer

Pending Publication Date: 2022-06-21
BEIJING SINOHYTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Therefore, the heating implementation methods in the prior art are more limited, and effective solutions need to be explored

Method used

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  • Fuel cell system and vehicle
  • Fuel cell system and vehicle
  • Fuel cell system and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] refer to Figure 1 to Figure 3 , a directional heating device, comprising a heat-conducting body, a channel and a heating area are arranged in the heat-conducting body, the channel flows through the heating area, and one end of the channel is a working medium outlet;

[0057] A heat source is arranged in the heating zone, and the heat source exchanges heat with the working medium in the channel;

[0058] The other end of the channel is a working medium inlet, and the working medium inlet and the working medium outlet are arranged on the outer surface of the heat conducting body;

[0059] The channel includes a heating cavity, and the diameter of the channel from the heating cavity to the outlet of the working medium gradually decreases.

[0060] The heating area is provided on the heat conducting body corresponding to the heating cavity.

[0061] The heat source is a stack cooling circulating liquid, the heating zone includes a circulating inlet and a circulating outlet...

Embodiment 2

[0065] refer to Figure 4 and Figure 5 , a directional heating device, the same as the first embodiment will not be repeated, wherein

[0066] The heat source is an electric heating element, and the electric heating element is electrically connected to the fuel cell system through a terminal.

[0067] There is thermally conductive silica gel between the electric heating element and the heating zone.

[0068] The heat-conducting body is also provided with a cover plate for encapsulating the heating area; the assembly hole is arranged on the cover plate.

Embodiment 3

[0070] refer to Image 6 , a fuel cell system, comprising a target heating area and the directional heating device described in Embodiment 1 or Embodiment 2, and the working medium outlet is arranged toward the target heating area.

[0071] The fuel cell system further includes a liquid storage chamber and a drain valve assembly, wherein the drain valve assembly includes a moving valve core, a valve seat and a valve body;

[0072] The valve seat has a throat opening, and the movable valve core is arranged at the throat opening, and the throat opening is a target heating area;

[0073] The working medium inlet of the directional heating device is communicated with the liquid storage chamber;

[0074] The passage from the heating chamber to the outlet of the working medium is sleeved in the valve body and the valve seat.

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PUM

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Abstract

The invention relates to the technical field of new energy, in particular to a fuel cell system and a vehicle, the system comprises a directional heating device and a target heating area, the directional heating device comprises a heat conduction body, a channel and a heating area are arranged in the heat conduction body, the channel flows through the heating area, and one end of the channel is a working medium outlet; a heat source is arranged in the heating area and exchanges heat with a working medium in the channel; the working medium outlet is arranged towards a target heating area; through the directional heating device, the medium passing through the channel can be heated, so that the target heating area can be heated, heat transfer is realized, and the cold start failure of the fuel cell system due to the fact that residual water is frequently frozen to block the flow channel in a low-temperature environment due to a drain valve on a hydrogen side is avoided; and the structure is compact and can be integrally designed with an existing drain valve structure, and meanwhile the structure of a heated part does not need to be changed.

Description

technical field [0001] The invention relates to the technical field of new energy, in particular to a fuel cell system and a vehicle. Background technique [0002] Low temperature "cold start" is one of the difficulties faced by automotive fuel cell systems. Since the fuel cell reaction itself generates water, the water vapor is easy to condense and freeze in a low temperature environment, which will block the reaction gas channel and affect the normal operation of the system in severe cases. Heating of key components, such as: in a cold environment, the hydrogen circulation pump, return connection pipeline, exhaust and drain valve of the hydrogen side system often require heating measures; especially the drain valve on the hydrogen side, in a low temperature environment, often The residual water freezes to block the flow channel, and then the failure mode of the cold start failure of the fuel cell system occurs. [0003] There are two common heating measures for automotiv...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H01M8/04007H01M8/04029H01M8/04223H01M8/04225B60L58/34
CPCH01M8/04007H01M8/04037H01M8/04029H01M8/04268H01M8/04253H01M8/04225B60L58/34H01M2250/20Y02T90/40
Inventor闪念丁铁新方川
OwnerBEIJING SINOHYTEC